57030263 has 2 divisors, whose sum is σ = 57030264. Its totient is φ = 57030262.

The previous prime is 57030227. The next prime is 57030289. The reversal of 57030263 is 36203075.

It is an a-pointer prime, because the next prime (57030289) can be obtained adding 57030263 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57030263 - 2⁸ = 57030007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57030293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28515131 + 28515132.

It is an arithmetic number, because the mean of its divisors is an integer number (28515132).

Almost surely, 2^57030263 is an apocalyptic number.

57030263 is a deficient number, since it is larger than the sum of its proper divisors (1).

57030263 is an equidigital number, since it uses as much as digits as its factorization.

57030263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 57030263 is about 7551.8383854529. The cubic root of 57030263 is about 384.9182105451.

The spelling of 57030263 in words is "fifty-seven million, thirty thousand, two hundred sixty-three".